320 Watt Cylinder Fan 10 in. Ventilation Blower. The 10 in. ventilation fan at an excellent price, top of quality and boxed, is mainly used for low wind pressure, air flow of the occasions, like factories, basements, shipyards, farms, grain storage, chemical, etc.It has a AC mptor. Made of heavy duty steel, compact with large flow 2700m3/h, portable with a handle, a 16 ft. PVC ducting.